Filtering-cup.



FILTERING CUP.

APPLICATION FILED oc. I1, I9I4.

CLARK Patented Apr. 27, 1915.

2 SHEETS-SHEET l.

OOooooooooo IIIII THE NORRIS PETERS C0., PHam-LITHO.. WASHINGTON. D. CA

F. B. CLARK.l

FILTEHING CUP.

3.91.3?,462 APPLICATION FILED OCT. l?. 19H.. Patented Apr, 27,

2 SHEETS-SHEET 2.

THr; NDRRIS PETERS Co.. FHOT-LITHOY. WASHINDTON, n. c

FEED B. CLARK, OF DENVER, CGLORADG.

FILTERING-CUP.

Specification of Letters Eatent.

rammen api. er, isis.

Application ledvctober 17, 1914. Serial No. 867,209.

T0 all whom t maf/ concern.'

Be it known that l, Fnnn B. CLARK, a citizen of the United States, residing in the city and county of Denver and State of Colorado, have invented certain new and useful improvements in FilteringCups; and l do declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the characters of reference marked thereon, which form a part of this specification.

My invention relates to improvements in filtering receptacles, preferably of the drinking cup form.

As illustrated in the drawing, my improvement consists of a drinking cup to the top of which filter is applied of such nitude as to thoroughly cleanse the water as it passes from the cup to the mouth of the user. The filter attachment for the cup may consist of various forms. For instance, in the preferred form, the filter is hinged to one edge of the cup and may be thrown outwardly and away from the top of the cup when it is desired to wash or cleanse the latter. ln other forms of my improvement, the filter may be formed separate from the cup and may be dropped into a .drinking receptacle of any description, as a glass. Again, in another form of the device, the cup is provided with an offset mouth piece adapted to receive a relatively small filter which is dropped thereinto and will maintain its position.

As illustrated in the drawing, the filter attachment is composed of two perforated plates between which is placed the filtering material, as charcoal, or a combination of charcoal and such other material as may be deemed efficacious or desirable for this purpose.

Having briefly outlined my improved construction, I will proceed to describe the same in detail, reference being made to the accompanying drawing, in which is illustrated an embodiment thereof.

ln this drawing, Figure l is a top plan view of a cup equipped with my improved filter attachment. Fig. 2 is a section taken on the line 2 2, Fig. l, looking downwardly. Fig. 3 is a View similar to Fig. 1, but show ing the cup in the collapsed form and with the filter in the full line position only. Fig. e is a detail view of a filter adapted to be dropped into a cup or glass of any ordinary design. Fig. 5 is a topV plan view of a glass with a filter of still another form placed therein. Fig. 6 is a vertical section of the same taken on the line @#6, Fig. 5. Fig. 7 is a sectional view in detail of the form of filter shown in Figs. 5 and 6. Fig. 8 is a top plan view of a special construction of drinking cup having an offset mouth piece in which a filter is placed. Fig. 9 is a section taken on the line 9 9, Fig. S. Fig. 10 is sectional detail view of the form of lter shown in Figs. 8 and 9.

The same reference characters indicate the same parts in all the views.

Referring first to Figs. l to d, inclusive, let the numeral 5 designate a collapsible drinking cup of any ordinary or suitable construction. ln Figs. l to inclusive, a filter 6 is hinged as shown l, to the upper edge of the uppermost section 8 of this cup. rlhis filter includes an outer wall l2 to .vhich are attached top and bottom perforated plates 9 and l0, which suitably spaced and between which is located a quantity of filtering material 13 which may be a cornbination of charcoal any other material which may forni a good filter for use in this connection. ln the centers of the top and bottom plates 9 and l0 formed relatively large openings in which is inserted sleeve or tube llwhich constitutes an inner vertically disposed wall of the filter. rllhe upper and lower extremities of this wall are bent outwardly and tightly secured to the perforated members 9 and l0, being slightly dished, the one downwardly and the other upwardly. rllhe outer wall l2 of this filter is preferably slightly beveled in order to lit within the upper part of the uppermost section 8 of the collapsible cup. llt is evident, however', tha Unis wall may be made vertical or any other shape that may be desired, in order to harmonize with the inner contour of the drinking receptacle with which it is intended to be use-d. The relatively large opening l5 which is surrounded by the wall le, constitutes a filler opening or an opening through which the cup may be filled. For instance, this opening is large enough to receive the discharge extremity of the ordinary faucet connected with receptacles for water, which are located in the latter which he is obliged to use.

railway cars and other public places. It is evident that this opening may be used to fill the cup from any source of water supply, even where itis desired to dip the .cup into the water. In this form of the device, assuming that the cup is filled with water, the user may drink from the edge thereofby tilting the cup. In this event, the water will flow freely through the filter on the side of the cup where the mouth is placed;V The quantity of filtering material is sufficient to thoroughly perform the filtering function. By virtue of this form ofl construction, any traveler may have not only an individual drinking cup in his possession,

but also'a filter attachment therefor which makes it impossible for him to drink disease germs `which may be contained in water As shown in Figs. 1, 2 and 8 of the drawing, this filter attachment readily collapses within the upper section of the drinking cup, and does not materially increase the space occupied by the cup when in the collapsed position '(s'ee Fig. 3).

In the form of construction shown in Figs. 5, 6 and 7, the filtert is formed separately from the glass -or other receptacle 16, withwhich itis desired to employ it.

. vIn this' case, the' filter is composedof an Vouter 'Wall 17 which is inwardly offset as shown at 18, leaving an open recess 19 atV Y this form of construction, the filter may be dropped into an ordinary glass (see Fig. 6) and the glass belowfthe filter may be filled through the opening 19. In drinking from the glass, the latter will be tilted 'so'that the V water as it passes to the mouth of the user must pass through the filter.

In the form of construction shown in Figs. 8, 9 and 10, the wall of a cup 23 is offset at the top, as shown at 24, forming a mouth piece in which is inserted a filter consisting of an outer wall 26, a top perforated member 27, and an upright perforated member 28. In this Vform of construction,

Vthe filter is located entirely beyond the body Copies of this patent may be ebtained for've cents Veach, by addressing the Washington, D. C.

`by the filtering substance such a directionas to cause thewater to'.

flow through the filter 25 to the'mouth,

From the foregoing description, it will be understood that many dierent forms of my improvement may be used. In the drawing, Y

I have endeavored to illustrate a sufficient it takes during the act of drinking. Hence,"

in cleaning any form of the filter, Awater may be Vdelivered to lthe upper perforated plate whereby it will pass downwardly and out lthrough the opposite plate, or that through which it first enters .thefilter during the drinking act. fIn this manner, the' vfilter -inaypbekquickly cleansed fromV impurities that may hecollected in or be caught during thejregu; lar Vuse of the device. f I f Having thus described my invention, what 1. i-i filtering receptacle comprising in combinationwiththe receptacle, aV filter ap@ plied to the upper vpart thereof and includ# ing a quantity of filtering material,` the filterY having an opening through which` the-receptacle may receive liquid whenthe filter" is in position. f Y,

2. A filter cup comprising in combination with the cup, afilter composed of two perforated walls and an interposed quantity of filtering material, the filter beingarranged to fit within Vthe upper part of the cup and hingedly connected withone edge thereof.

3. A filtering cup comprising `in, combina- Y tion with the cup,'a filter composed of two rperforated walls and an interposed quantity of filtering material, Vthe filter being ar' ranged to fit Within the top of the eupand having anopening through which thjefcup may receive'liqu'id.

4.- A combination'with. a cup, of Yaffilter applied to the upper portion thereof, the filtering part having f an opening therethrough independent of the filter openings themselves, and through which independent opening the cup may receive liquid.

In testimony whereof I affix my signature in presence of two witnesses.v

Witnesses:

MAZE KIRBY,

A. Ennn'r OBRIEN.

YCommissioner `of V Patents,

raini- B. orgaan." 'i 

